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Creating and inserting data into RRDS

 
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ipavan

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Joined: 12 Jun 2005
Posts: 28
Location: Hyderabad

PostPosted: Tue Oct 04, 2005 5:11 pm    Post subject: Creating and inserting data into RRDS
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SUPPOSE I WANT TO CREATE A RRDS CLUSTER WITH 100 RECORDS , HOW TO DO IT. AFTER CREATING AND INSERTING DATA INTO IF I DELETE SOME 10 RECORDS IN THE MIDDLE SAY 30 TO 40 WILL REORGANIZATION OF DATA TAKES PLACE.
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jeyakanthan

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Joined: 18 May 2005
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Location: chennai

PostPosted: Tue Oct 04, 2005 8:25 pm    Post subject: Re: doubt regarding RRDS
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Create & load RRDS using IDCAMS utility.

In RRDS if you delete a record then particular slot will be empty until

it will be written with another record.

So Reorganization will not take place in RRDS,

It will be only possible in KSDS.
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ipavan

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Location: Hyderabad

PostPosted: Wed Oct 05, 2005 11:35 am    Post subject: Re: doubt regarding RRDS
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Thanks jeyakanthan , for your reply. I also want to know while creating RRDS cluster can we mention like it is going to have say some 500 records.

If so what parameter is used to mention that a RRDS cluster is going to have 500 records.
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jeyakanthan

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PostPosted: Thu Oct 06, 2005 1:01 pm    Post subject: Re: Creating and inserting data into RRDS
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You can use RECORDSIZE parameter.

RECORDSIZE(average rec size, max rec size).
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ipavan

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Location: Hyderabad

PostPosted: Thu Oct 06, 2005 1:27 pm    Post subject: Re: Creating and inserting data into RRDS
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jeyakanthan i think recordsize parameter is used to mention the size of a record and as we are creating a RRDS cluster average rec size and max rec size will both be the same.
I want to know how to mention that my RRDS cluster is going to have 500 records.
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ikumar

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Joined: 02 Aug 2005
Posts: 81

PostPosted: Mon Oct 10, 2005 12:36 pm    Post subject: Re: Creating and inserting data into RRDS
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RECORDS(500 100)

The values indicates primary and secondary quantities in terms of RECORDS.
Specifying the number of records, independent of the number of physical units, such as blocks, tracks or cylinders, leaves the calculation of the number of physical units of space up to VSAM. VSAM calculates the size of the CI and CA to be used. You may specify the CI size yourself, and VSAM will use it as long as it falls within the acceptable limits that VSAM calculates.

Hope this helps...

Cheers,
Kumar.
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